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《Progress In Geophysics》 2002-03
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The Methods of Describing the Underground Model

LI Ying-chun XU Guo-ming XU Tao (Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China)  
The methods describing models can be classified into two categories: discrete and continuous. The discrete methods divide the model into many little blocks using regular or irregular grids. The continuous methods use analytic functions or interpolation methods. One important element of the continuous method is how the interface is described. Considering the techniques developed greatly in the subjects of computer graphics and computer aided geometry design, the modele introduced with Coons surfaces?Bezier surfaces?B-spline surfaces and triangle meshes. Especially, for the need of the exploration's data acquisition system, a scheme using triangle meshes is giving.
【Fund】: 国家自然科学基金项目 (4 99740 0 8)资助
【CateGory Index】: P631.4
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